输运床气化炉IGCC系统在不同净化方案配置下的热力性能比较  

Thermal Performance Comparison of IGCC System with Transport Gasifier in Different Syngas Clean-up Configurations

作　　者：周贤[1,2] 王波[1,2] 张士杰[1] 肖云汉[1] 

机构地区：[1]中国科学院先进能源动力重点实验室(工程热物理研究所),北京100190 [2]中国科学院研究生院,北京100049

出　　处：《动力工程》2009年第7期688-693,共6页Power Engineering

基　　金：国家高技术研究发展计划课题资助项目(2006AA05A109)

摘　　要：以输运床气化炉和E级燃气轮机为基础,构建了采用湿法除尘+低温脱硫、干法除尘+低温脱硫、干法除尘+中温脱硫和干法除尘+高温脱硫等4种净化方案的整体煤气化联合循环(IGCC)系统.应用输运床气化炉平衡模型和燃气轮机变工况模型,在相同的NOx排放标准和燃气轮机阀站煤气进气温度的条件下,对采用不同净化工艺方案的输运床IGCC系统的热力性能进行了计算和比较.结果表明:采用干法除尘+中温脱硫净化方案的输运床IGCC系统的供电效率为42.22%,比采用湿法除尘+低温脱硫方案的IGCC系统高1.34%;燃气轮机煤气进气温度的升高有利于提高IGCC系统的供电效率.Based on the transport gasifier and frame E gas turbine （GT）, four integrated gasification combined cycle （IGCC） systems with different syngas clean-up processes were configured, including wet dust removal（DR） ＋ low temperature （LT） desulfurization, dry DR ＋ LT desulfurization, dry DR＋ medium temperature（MT） desulfurization and dry DR＋ high temperature desulfurization. Thermal performances of IGCC systems with different syngas clean-up modes were calculated by using equilibrium model of gasifier and off-design model of GT under conditions of the same NOx emission and inlet fuel temperature of GT. Results show that the power supply efficiency of IGCC system with transport gasifier adopting wet dust removal and MT desulfurization is 42.22%, which is 1.34 % higher than that adopting wet DR＋LT desulfurization. Higher inlet fuel temperature of GT is helpful to increase the the power supply efficiency of the IGCC system.

关 键 词：整体煤气化联合循环 合成气净化 输运床气化炉 热力性能 

分 类 号：TM611.31[电气工程—电力系统及自动化]